Berkeley 54

(MWSC 3456; OCL 194; FSR 0256)

0.95 UTI

1.0

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 544

Stellar density (N₅₀/rad) 48.0 [N/pc²]

C3 classification AB

C_N 1.0 Very rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Berkeley 54 is a very rich, very dense object of high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

Very distant Moderate extinction Massive Near-solar metallicity Old

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Berkeley 54 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	315.744	40.433	0.138	-3.105	-3.288	-55.072
Hu & Soubiran	2025	315.737	40.429	–	–	–	–
Almeida et al.	2025	315.744	40.431	–	–	–	–
Hunt & Reffert	2024	315.742	40.429	0.149	-3.075	-3.308	-48.879
Cavallo et al.	2024	315.737	40.429	0.14	–	–	–
Hunt & Reffert	2023	315.742	40.429	0.149	-3.075	-3.308	-48.879
Just et al.	2023	315.745	40.437	–	–	–	–
Dias et al.	2021	315.744	40.431	0.119	-3.086	-3.256	-54.951
Cantat-Gaudin et al.	2020	315.745	40.433	0.12	-3.091	-3.254	–
Cantat-Gaudin & Anders	2020	315.745	40.433	0.12	-3.091	-3.254	–
Soubiran et al.	2018	315.745	40.433	–	–	–	-56.21
Bica et al.	2019	315.789	40.462	–	–	–	–
Cantat-Gaudin et al.	2018	315.745	40.433	0.12	-3.091	-3.254	–
Loktin & Popova	2017	315.75	40.437	–	-0.138	-0.181	–
Kharchenko et al.	2016	315.745	40.437	–	–	–	–
Dias et al.	2014	315.8	40.467	–	-1.9	-5.39	–
Kharchenko et al.	2013	315.75	40.44	–	-2.66	-0.82	–
van den Bergh	2006	315.8	40.467	–	–	–	–
Dias et al.	2002	315.8	40.467	–	-1.87	-5.43	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	6.49	2.64	2.06	1892	-0.190	3087	–	–
Hu & Soubiran	2025	–	–	–	–	-0.190⁽⁵⁾	–	–	–
Almeida et al.	2025	6.96	2.62	–	1892	–	6147	–	–
Hunt & Reffert	2024	–	–	–	–	–	3087⁽¹⁾	–	–
Cavallo et al.	2024	6.49	2.66	–	2188	-0.310	–	–	–
Hunt & Reffert	2023	5.62	3.23	2.06	785	–	–	–	–
Just et al.	2023	–	–	–	966	–	855	–	–
Dias et al.	2021	6.96	2.62	–	1892	0.029	–	–	–
Cantat-Gaudin et al.	2020	6.67	2.24	–	2692	–	–	–	–
Cantat-Gaudin & Anders	2020	6.71	–	–	–	–	–	–	–
Soubiran et al.	2018	6.71	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	6.71	–	–	–	–	–	–	–
Loktin & Popova	2017	2.23	3.17	–	2188	–	–	–	–
Kharchenko et al.	2016	4.24	3.52	–	966	–	–	–	–
Kharchenko et al.	2013	4.24	3.52	–	966	–	–	–	–
van den Bergh	2006	2.30	2.39	–	3981	–	–	–	–
Dias et al.	2002	2.30	2.39	–	3981	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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